APSMediaTrackableObject
Objective-C
@protocol APSMediaTrackableObject <NSObject>
                Swift
protocol APSMediaTrackableObject : NSObjectProtocol
                Defines the properties that an object needs to implement to become trackable by the player.
- 
                  
                  
This dictionary defines all URLs that need to be notified of specific events from the object’s lifecycle. The keys are event constants, as defined in
APSMediaPlayer, and the values areNSArrayscontainingNSURLobjects.Declaration
Objective-C
@property (nonatomic) NSMutableDictionary *_Nullable trackingURLs;Swift
var trackingURLs: NSMutableDictionary? { get set } 
      APSMediaTrackableObject Protocol Reference